Motorola MBP160 - High-Pitched Noise Resolution; Battery Drain Issues

16 Troubleshooting
The digital baby monitor system produces a high-pitched
noise
• The parent unit and the baby unit are too close to each other. Make sure that
the parent unit and baby unit are at least 3 feet away from each other.
• The speaker volume of the parent unit may be set too high. Decrease the
volume of the parent unit. Refer to section 3.3 for volume level settings.
Battery pack in the parent unit is running low quickly
• The volume level of the parent unit may be set too high, which consumes
power. Decrease the volume level of the parent unit. Refer to section 3.3 for
volume level settings.